noun
Formal term for a treaty that ends a state of war between nations.
両国は講和条約に調印した。
The two countries signed a peace treaty.
平和条約 is a more common and general term for a peace treaty, while 講和条約 is a more formal, often historical term specifically referring to a treaty ending a war.
Compound of 講和 (kōwa, 'peace, reconciliation') and 条約 (jōyaku, 'treaty').